37221090 has 16 divisors (see below), whose sum is σ = 89330688. Its totient is φ = 9925616.

The previous prime is 37221077. The next prime is 37221091. The reversal of 37221090 is 9012273.

It is a self number, because there is not a number n which added to its sum of digits gives 37221090.

It is not an unprimeable number, because it can be changed into a prime (37221091) 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, 620322 + ... + 620381.

It is an arithmetic number, because the mean of its divisors is an integer number (5583168).

Almost surely, 2^37221090 is an apocalyptic number.

37221090 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

37221090 is an abundant number, since it is smaller than the sum of its proper divisors (52109598).

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

37221090 is a wasteful number, since it uses less digits than its factorization.

37221090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240713.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 37221090 is about 6100.9089486731. The cubic root of 37221090 is about 333.8845801007.

The spelling of 37221090 in words is "thirty-seven million, two hundred twenty-one thousand, ninety".