742212780 has 48 divisors (see below), whose sum is σ = 2085586944. Its totient is φ = 197219520.

The previous prime is 742212769. The next prime is 742212787. The reversal of 742212780 is 87212247.

It is not an unprimeable number, because it can be changed into a prime (742212787) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4876 + ... + 38835.

It is an arithmetic number, because the mean of its divisors is an integer number (43449728).

Almost surely, 2^742212780 is an apocalyptic number.

It is an amenable number.

742212780 is an abundant number, since it is smaller than the sum of its proper divisors (1343374164).

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

742212780 is a wasteful number, since it uses less digits than its factorization.

742212780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44006 (or 44004 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 33.

The square root of 742212780 is about 27243.5823635586. The cubic root of 742212780 is about 905.4048350044.

It can be divided in two parts, 7422 and 12780, that added together give a palindrome (20202).

The spelling of 742212780 in words is "seven hundred forty-two million, two hundred twelve thousand, seven hundred eighty".