45402030 has 48 divisors (see below), whose sum is σ = 118379664. Its totient is φ = 12072960.

The previous prime is 45402029. The next prime is 45402041. The reversal of 45402030 is 3020454.

It is a happy number.

It is a super-2 number, since 2×45402030² = 4122688656241800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 45401994 and 45402012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57297 + ... + 58083.

It is an arithmetic number, because the mean of its divisors is an integer number (2466243).

Almost surely, 2^45402030 is an apocalyptic number.

45402030 is an abundant number, since it is smaller than the sum of its proper divisors (72977634).

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

45402030 is a wasteful number, since it uses less digits than its factorization.

45402030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441 (or 1438 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 45402030 is about 6738.1028487253. The cubic root of 45402030 is about 356.7454344138.

Adding to 45402030 its reverse (3020454), we get a palindrome (48422484).

The spelling of 45402030 in words is "forty-five million, four hundred two thousand, thirty".