1400430140 has 48 divisors (see below), whose sum is σ = 2973348000. Its totient is φ = 554026752.

The previous prime is 1400430139. The next prime is 1400430151. The reversal of 1400430140 is 410340041.

It is a super-2 number, since 2×1400430140² = 3922409154040839200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 800747 + ... + 802493.

It is an arithmetic number, because the mean of its divisors is an integer number (61944750).

Almost surely, 2^1400430140 is an apocalyptic number.

1400430140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1400430140 is an abundant number, since it is smaller than the sum of its proper divisors (1572917860).

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

1400430140 is a wasteful number, since it uses less digits than its factorization.

1400430140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2174 (or 2172 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1400430140 is about 37422.3214138300. The cubic root of 1400430140 is about 1118.8035000788.

Adding to 1400430140 its reverse (410340041), we get a palindrome (1810770181).

Subtracting from 1400430140 its reverse (410340041), we obtain a palindrome (990090099).

It can be divided in two parts, 14004 and 30140, that added together give a palindrome (44144).

The spelling of 1400430140 in words is "one billion, four hundred million, four hundred thirty thousand, one hundred forty".