1242470500 has 48 divisors (see below), whose sum is σ = 2873196144. Its totient is φ = 467750400.

The previous prime is 1242470491. The next prime is 1242470501. The reversal of 1242470500 is 50742421.

It can be written as a sum of positive squares in 8 ways, for example, as 181926144 + 1060544356 = 13488^2 + 32566^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (1242470501) 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, 64587 + ... + 81586.

It is an arithmetic number, because the mean of its divisors is an integer number (59858253).

Almost surely, 2^1242470500 is an apocalyptic number.

1242470500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1242470500 is an abundant number, since it is smaller than the sum of its proper divisors (1630725644).

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

1242470500 is a wasteful number, since it uses less digits than its factorization.

1242470500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146209 (or 146197 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 1242470500 is about 35248.6950113050. The cubic root of 1242470500 is about 1075.0500787920.

The spelling of 1242470500 in words is "one billion, two hundred forty-two million, four hundred seventy thousand, five hundred".