1400554431 has 24 divisors (see below), whose sum is σ = 2046227040. Its totient is φ = 923037696.

The previous prime is 1400554427. The next prime is 1400554459. The reversal of 1400554431 is 1344550041.

It is a happy number.

It is not a de Polignac number, because 1400554431 - 2² = 1400554427 is a prime.

It is a super-2 number, since 2×1400554431² = 3923105428387467522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1400554395 and 1400554404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400554471) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 444895 + ... + 448031.

It is an arithmetic number, because the mean of its divisors is an integer number (85259460).

Almost surely, 2^1400554431 is an apocalyptic number.

1400554431 is a deficient number, since it is larger than the sum of its proper divisors (645672609).

1400554431 is a wasteful number, since it uses less digits than its factorization.

1400554431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3695 (or 3692 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1400554431 is about 37423.9820302437. The cubic root of 1400554431 is about 1118.8365977888.

The spelling of 1400554431 in words is "one billion, four hundred million, five hundred fifty-four thousand, four hundred thirty-one".