45430402 has 4 divisors (see below), whose sum is σ = 68145606. Its totient is φ = 22715200.

The previous prime is 45430393. The next prime is 45430447. The reversal of 45430402 is 20403454.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 40717161 + 4713241 = 6381^2 + 2171^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11357599 + ... + 11357602.

Almost surely, 2^45430402 is an apocalyptic number.

45430402 is a deficient number, since it is larger than the sum of its proper divisors (22715204).

45430402 is a wasteful number, since it uses less digits than its factorization.

45430402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22715203.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 45430402 is about 6740.2078602963. The cubic root of 45430402 is about 356.8197297250.

Adding to 45430402 its reverse (20403454), we get a palindrome (65833856).

The spelling of 45430402 in words is "forty-five million, four hundred thirty thousand, four hundred two".