45242631 has 30 divisors (see below), whose sum is σ = 78625800. Its totient is φ = 25850664.

The previous prime is 45242599. The next prime is 45242653. The reversal of 45242631 is 13624254.

45242631 is a `hidden beast` number, since 4 + 5 + 24 + 2 + 631 = 666.

It is not a de Polignac number, because 45242631 - 2⁵ = 45242599 is a prime.

It is a super-2 number, since 2×45242631² = 4093791319604322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 45242595 and 45242604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45242531) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 1731 + ... + 9668.

It is an arithmetic number, because the mean of its divisors is an integer number (2620860).

Almost surely, 2^45242631 is an apocalyptic number.

45242631 is a deficient number, since it is larger than the sum of its proper divisors (33383169).

45242631 is a wasteful number, since it uses less digits than its factorization.

45242631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11425 (or 11409 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 45242631 is about 6726.2642677790. The cubic root of 45242631 is about 356.3274535195.

Adding to 45242631 its reverse (13624254), we get a palindrome (58866885).

The spelling of 45242631 in words is "forty-five million, two hundred forty-two thousand, six hundred thirty-one".