45400431 has 8 divisors (see below), whose sum is σ = 61300480. Its totient is φ = 29883672.

The previous prime is 45400417. The next prime is 45400447. The reversal of 45400431 is 13400454.

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

It is not a de Polignac number, because 45400431 - 2¹³ = 45392239 is a prime.

It is a super-2 number, since 2×45400431² = 4122398269971522, 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 = 45400398 and 45400407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45400451) 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, 95545 + ... + 96018.

It is an arithmetic number, because the mean of its divisors is an integer number (7662560).

Almost surely, 2^45400431 is an apocalyptic number.

45400431 is a deficient number, since it is larger than the sum of its proper divisors (15900049).

45400431 is a wasteful number, since it uses less digits than its factorization.

45400431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191645.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 45400431 is about 6737.9841941043. The cubic root of 45400431 is about 356.7412463290.

Adding to 45400431 its reverse (13400454), we get a palindrome (58800885).

The spelling of 45400431 in words is "forty-five million, four hundred thousand, four hundred thirty-one".