742261620 has 24 divisors (see below), whose sum is σ = 2078332704. Its totient is φ = 197936416.

The previous prime is 742261609. The next prime is 742261651. The reversal of 742261620 is 26162247.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6185454 + ... + 6185573.

It is an arithmetic number, because the mean of its divisors is an integer number (86597196).

Almost surely, 2^742261620 is an apocalyptic number.

It is an amenable number.

742261620 is an abundant number, since it is smaller than the sum of its proper divisors (1336071084).

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

742261620 is a wasteful number, since it uses less digits than its factorization.

742261620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12371039 (or 12371037 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 742261620 is about 27244.4787067031. The cubic root of 742261620 is about 905.4246940904.

The spelling of 742261620 in words is "seven hundred forty-two million, two hundred sixty-one thousand, six hundred twenty".