45249669 has 6 divisors (see below), whose sum is σ = 65360646. Its totient is φ = 30166440.

The previous prime is 45249667. The next prime is 45249689. The reversal of 45249669 is 96694254.

It can be written as a sum of positive squares in only one way, i.e., 43956900 + 1292769 = 6630^2 + 1137^2 .

It is not a de Polignac number, because 45249669 - 2¹ = 45249667 is a prime.

It is a super-2 number, since 2×45249669² = 4095065089219122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45249667) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2513862 + ... + 2513879.

It is an arithmetic number, because the mean of its divisors is an integer number (10893441).

Almost surely, 2^45249669 is an apocalyptic number.

It is an amenable number.

45249669 is a deficient number, since it is larger than the sum of its proper divisors (20110977).

45249669 is a wasteful number, since it uses less digits than its factorization.

45249669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5027747 (or 5027744 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 45249669 is about 6726.7874204556. The cubic root of 45249669 is about 356.3459294755.

The spelling of 45249669 in words is "forty-five million, two hundred forty-nine thousand, six hundred sixty-nine".