1400431038 has 16 divisors (see below), whose sum is σ = 2922638976. Its totient is φ = 446514200.

The previous prime is 1400431037. The next prime is 1400431057. The reversal of 1400431038 is 8301340041.

It is a super-2 number, since 2×1400431038² = 3922414184387514888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1400430999 and 1400431017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400431037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5073888 + ... + 5074163.

It is an arithmetic number, because the mean of its divisors is an integer number (182664936).

Almost surely, 2^1400431038 is an apocalyptic number.

1400431038 is an abundant number, since it is smaller than the sum of its proper divisors (1522207938).

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

1400431038 is a wasteful number, since it uses less digits than its factorization.

1400431038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10148079.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 1400431038 is about 37422.3334120148. Note that the first 3 decimals coincide. The cubic root of 1400431038 is about 1118.8037392161.

Adding to 1400431038 its reverse (8301340041), we get a palindrome (9701771079).

The spelling of 1400431038 in words is "one billion, four hundred million, four hundred thirty-one thousand, thirty-eight".