1400024431 has 8 divisors (see below), whose sum is σ = 1515374784. Its totient is φ = 1285767840.

The previous prime is 1400024419. The next prime is 1400024459. The reversal of 1400024431 is 1344200041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1400024431 - 2⁷ = 1400024303 is a prime.

It is a super-2 number, since 2×1400024431² = 3920136814793747522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1400024399 and 1400024408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400028431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270775 + ... + 275896.

It is an arithmetic number, because the mean of its divisors is an integer number (189421848).

Almost surely, 2^1400024431 is an apocalyptic number.

1400024431 is a deficient number, since it is larger than the sum of its proper divisors (115350353).

1400024431 is a wasteful number, since it uses less digits than its factorization.

1400024431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546881.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1400024431 is about 37416.9003392852. The cubic root of 1400024431 is about 1118.6954493506.

Adding to 1400024431 its reverse (1344200041), we get a palindrome (2744224472).

The spelling of 1400024431 in words is "one billion, four hundred million, twenty-four thousand, four hundred thirty-one".