1400431014 has 72 divisors (see below), whose sum is σ = 3212554176. Its totient is φ = 440438400.

The previous prime is 1400430991. The next prime is 1400431037. The reversal of 1400431014 is 4101340041.

It is an interprime number because it is at equal distance from previous prime (1400430991) and next prime (1400431037).

It is a super-2 number, since 2×1400431014² = 3922414049946136392, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 937252 + ... + 938744.

It is an arithmetic number, because the mean of its divisors is an integer number (44618808).

Almost surely, 2^1400431014 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1400431014, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1606277088).

1400431014 is an abundant number, since it is smaller than the sum of its proper divisors (1812123162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1400431014 is a wasteful number, since it uses less digits than its factorization.

1400431014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1614 (or 1570 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1400431014 is about 37422.3330913507. Note that the first 3 decimals coincide. The cubic root of 1400431014 is about 1118.8037328249.

Adding to 1400431014 its reverse (4101340041), we get a palindrome (5501771055).

The spelling of 1400431014 in words is "one billion, four hundred million, four hundred thirty-one thousand, fourteen".