742493940 has 24 divisors (see below), whose sum is σ = 2078983200. Its totient is φ = 197998368.

The previous prime is 742493923. The next prime is 742493953. The reversal of 742493940 is 49394247.

It is a junction number, because it is equal to n+sod(n) for n = 742493892 and 742493901.

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, 6187390 + ... + 6187509.

It is an arithmetic number, because the mean of its divisors is an integer number (86624300).

Almost surely, 2^742493940 is an apocalyptic number.

It is an amenable number.

742493940 is an abundant number, since it is smaller than the sum of its proper divisors (1336489260).

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

742493940 is a wasteful number, since it uses less digits than its factorization.

742493940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12374911 (or 12374909 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 742493940 is about 27248.7419893103. The cubic root of 742493940 is about 905.5191470063.

The spelling of 742493940 in words is "seven hundred forty-two million, four hundred ninety-three thousand, nine hundred forty".