45090742 has 8 divisors (see below), whose sum is σ = 67673232. Its totient is φ = 22533000.

The previous prime is 45090733. The next prime is 45090761. The reversal of 45090742 is 24709054.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×45090742² = 4066350028221128, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 634 + ... + 9517.

It is an arithmetic number, because the mean of its divisors is an integer number (8459154).

Almost surely, 2^45090742 is an apocalyptic number.

45090742 is a deficient number, since it is larger than the sum of its proper divisors (22582490).

45090742 is a wasteful number, since it uses less digits than its factorization.

45090742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12374.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 45090742 is about 6714.9640356446. The cubic root of 45090742 is about 355.9282511215.

Adding to 45090742 its reverse (24709054), we get a palindrome (69799796).

The spelling of 45090742 in words is "forty-five million, ninety thousand, seven hundred forty-two".