45102040 has 32 divisors (see below), whose sum is σ = 102915360. Its totient is φ = 17785600.

The previous prime is 45102023. The next prime is 45102053. The reversal of 45102040 is 4020154.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5101 + ... + 10780.

It is an arithmetic number, because the mean of its divisors is an integer number (3216105).

Almost surely, 2^45102040 is an apocalyptic number.

45102040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45102040 is an abundant number, since it is smaller than the sum of its proper divisors (57813320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45102040 is a wasteful number, since it uses less digits than its factorization.

45102040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15963 (or 15959 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 45102040 is about 6715.8052383910. The cubic root of 45102040 is about 355.9579759341.

Adding to 45102040 its reverse (4020154), we get a palindrome (49122194).

The spelling of 45102040 in words is "forty-five million, one hundred two thousand, forty".