90629742 has 16 divisors (see below), whose sum is σ = 207153792. Its totient is φ = 25894200.

The previous prime is 90629711. The next prime is 90629743. The reversal of 90629742 is 24792609.

It is a self number, because there is not a number n which added to its sum of digits gives 90629742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90629743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1078884 + ... + 1078967.

It is an arithmetic number, because the mean of its divisors is an integer number (12947112).

Almost surely, 2^90629742 is an apocalyptic number.

90629742 is an abundant number, since it is smaller than the sum of its proper divisors (116524050).

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

90629742 is a wasteful number, since it uses less digits than its factorization.

90629742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2157863.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 90629742 is about 9519.9654411137. The cubic root of 90629742 is about 449.1832790949.

The spelling of 90629742 in words is "ninety million, six hundred twenty-nine thousand, seven hundred forty-two".