740478815424 has 224 divisors, whose sum is σ = 2304312384000. Its totient is φ = 232772133888.

The previous prime is 740478815407. The next prime is 740478815429. The reversal of 740478815424 is 424518874047.

It is a happy number.

740478815424 is a `hidden beast` number, since 7 + 40 + 478 + 81 + 54 + 2 + 4 = 666.

It is a super-3 number, since 3×740478815424³ (a number of 37 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (740478815429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1982997 + ... + 2326635.

Almost surely, 2^740478815424 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 740478815424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1152156192000).

740478815424 is an abundant number, since it is smaller than the sum of its proper divisors (1563833568576).

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

740478815424 is a wasteful number, since it uses less digits than its factorization.

740478815424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343732 (or 343716 counting only the distinct ones).

The product of its (nonzero) digits is 8028160, while the sum is 54.

The spelling of 740478815424 in words is "seven hundred forty billion, four hundred seventy-eight million, eight hundred fifteen thousand, four hundred twenty-four".