742070752240 has 160 divisors (see below), whose sum is σ = 1872431406720. Its totient is φ = 272397926400.

The previous prime is 742070752237. The next prime is 742070752253. The reversal of 742070752240 is 42257070247.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 742070752193 and 742070752202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 151162906 + ... + 151167814.

It is an arithmetic number, because the mean of its divisors is an integer number (11702696292).

Almost surely, 2^742070752240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 742070752240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (936215703360).

742070752240 is an abundant number, since it is smaller than the sum of its proper divisors (1130360654480).

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

742070752240 is a wasteful number, since it uses less digits than its factorization.

742070752240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7691 (or 7685 counting only the distinct ones).

The product of its (nonzero) digits is 219520, while the sum is 40.

The spelling of 742070752240 in words is "seven hundred forty-two billion, seventy million, seven hundred fifty-two thousand, two hundred forty".