45402132 has 24 divisors (see below), whose sum is σ = 107938656. Its totient is φ = 14848288.

The previous prime is 45402103. The next prime is 45402143. The reversal of 45402132 is 23120454.

It is a super-2 number, since 2×45402132² = 4122707180290848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45402099 and 45402108.

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, 35058 + ... + 36329.

It is an arithmetic number, because the mean of its divisors is an integer number (4497444).

Almost surely, 2^45402132 is an apocalyptic number.

It is an amenable number.

45402132 is an abundant number, since it is smaller than the sum of its proper divisors (62536524).

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

45402132 is a wasteful number, since it uses less digits than its factorization.

45402132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71447 (or 71445 counting only the distinct ones).

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

The square root of 45402132 is about 6738.1104176171. The cubic root of 45402132 is about 356.7457015678.

Adding to 45402132 its reverse (23120454), we get a palindrome (68522586).

The spelling of 45402132 in words is "forty-five million, four hundred two thousand, one hundred thirty-two".