742370 has 16 divisors (see below), whose sum is σ = 1359288. Its totient is φ = 291840.

The previous prime is 742369. The next prime is 742381. The reversal of 742370 is 73247.

It can be written as a sum of positive squares in 4 ways, for example, as 323761 + 418609 = 569^2 + 647^2 .

It is a super-2 number, since 2×742370² = 1102226433800, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2 + ... + 1218.

2⁷⁴²³⁷⁰ is an apocalyptic number.

742370 is a deficient number, since it is larger than the sum of its proper divisors (616918).

742370 is a wasteful number, since it uses less digits than its factorization.

742370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285.

The product of its (nonzero) digits is 1176, while the sum is 23.

The square root of 742370 is about 861.6089600277. The cubic root of 742370 is about 90.5468759934.

The spelling of 742370 in words is "seven hundred forty-two thousand, three hundred seventy", and thus it is an iban number.