1400431037 has 2 divisors, whose sum is σ = 1400431038. Its totient is φ = 1400431036.

The previous prime is 1400430991. The next prime is 1400431057. The reversal of 1400431037 is 7301340041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1394723716 + 5707321 = 37346^2 + 2389^2 .

It is a cyclic number.

It is not a de Polignac number, because 1400431037 - 2¹⁰ = 1400430013 is a prime.

It is a super-2 number, since 2×1400431037² = 3922414178785790738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1400431057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700215518 + 700215519.

It is an arithmetic number, because the mean of its divisors is an integer number (700215519).

Almost surely, 2^1400431037 is an apocalyptic number.

It is an amenable number.

1400431037 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400431037 is an equidigital number, since it uses as much as digits as its factorization.

1400431037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 1400431037 is about 37422.3333986538. Note that the first 4 decimals coincide. The cubic root of 1400431037 is about 1118.8037389498.

Adding to 1400431037 its reverse (7301340041), we get a palindrome (8701771078).

The spelling of 1400431037 in words is "one billion, four hundred million, four hundred thirty-one thousand, thirty-seven".