742419756 has 120 divisors (see below), whose sum is σ = 2200370480. Its totient is φ = 216390528.

The previous prime is 742419731. The next prime is 742419761. The reversal of 742419756 is 657914247.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 75390 + ... + 84666.

Almost surely, 2^742419756 is an apocalyptic number.

742419756 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 742419756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1100185240).

742419756 is an abundant number, since it is smaller than the sum of its proper divisors (1457950724).

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

742419756 is a wasteful number, since it uses less digits than its factorization.

742419756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9325 (or 9314 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 742419756 is about 27247.3807181534. The cubic root of 742419756 is about 905.4889886144.

The spelling of 742419756 in words is "seven hundred forty-two million, four hundred nineteen thousand, seven hundred fifty-six".