742219990 has 32 divisors (see below), whose sum is σ = 1439032320. Its totient is φ = 274718304.

The previous prime is 742219987. The next prime is 742219999. The reversal of 742219990 is 99912247.

742219990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742219999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37254 + ... + 53593.

It is an arithmetic number, because the mean of its divisors is an integer number (44969760).

Almost surely, 2^742219990 is an apocalyptic number.

742219990 is a deficient number, since it is larger than the sum of its proper divisors (696812330).

742219990 is a wasteful number, since it uses less digits than its factorization.

742219990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90916.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 742219990 is about 27243.7146879790. The cubic root of 742219990 is about 905.4077667548.

The spelling of 742219990 in words is "seven hundred forty-two million, two hundred nineteen thousand, nine hundred ninety".