1470721940 has 12 divisors (see below), whose sum is σ = 3088516116. Its totient is φ = 588288768.

The previous prime is 1470721909. The next prime is 1470721951. The reversal of 1470721940 is 491270741.

It can be written as a sum of positive squares in 2 ways, for example, as 637360516 + 833361424 = 25246^2 + 28868^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1470721940.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36768029 + ... + 36768068.

It is an arithmetic number, because the mean of its divisors is an integer number (257376343).

Almost surely, 2^1470721940 is an apocalyptic number.

1470721940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1470721940 is an abundant number, since it is smaller than the sum of its proper divisors (1617794176).

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

1470721940 is a wasteful number, since it uses less digits than its factorization.

1470721940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73536106 (or 73536104 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 1470721940 is about 38349.9926988259. The cubic root of 1470721940 is about 1137.2174726417.

The spelling of 1470721940 in words is "one billion, four hundred seventy million, seven hundred twenty-one thousand, nine hundred forty".