748155408 has 320 divisors, whose sum is σ = 2711826432. Its totient is φ = 171325440.

The previous prime is 748155347. The next prime is 748155437. The reversal of 748155408 is 804551847.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 748155408.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1104766 + ... + 1105442.

Almost surely, 2^748155408 is an apocalyptic number.

748155408 is a gapful number since it is divisible by the number (78) 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 748155408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1355913216).

748155408 is an abundant number, since it is smaller than the sum of its proper divisors (1963671024).

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

748155408 is a wasteful number, since it uses less digits than its factorization.

748155408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742 (or 736 counting only the distinct ones).

The product of its (nonzero) digits is 179200, while the sum is 42.

The square root of 748155408 is about 27352.4296544201. The cubic root of 748155408 is about 907.8148302438.

The spelling of 748155408 in words is "seven hundred forty-eight million, one hundred fifty-five thousand, four hundred eight".