1240094820 has 24 divisors (see below), whose sum is σ = 3472265664. Its totient is φ = 330691936.

The previous prime is 1240094809. The next prime is 1240094861. The reversal of 1240094820 is 284900421.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10334064 + ... + 10334183.

It is an arithmetic number, because the mean of its divisors is an integer number (144677736).

Almost surely, 2^1240094820 is an apocalyptic number.

1240094820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1240094820 is an abundant number, since it is smaller than the sum of its proper divisors (2232170844).

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

1240094820 is a wasteful number, since it uses less digits than its factorization.

1240094820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20668259 (or 20668257 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 1240094820 is about 35214.9800511089. The cubic root of 1240094820 is about 1074.3644543343.

The spelling of 1240094820 in words is "one billion, two hundred forty million, ninety-four thousand, eight hundred twenty".