1437680340 has 72 divisors (see below), whose sum is σ = 4522496160. Its totient is φ = 383380128.

The previous prime is 1437680303. The next prime is 1437680341. The reversal of 1437680340 is 430867341.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1437680295 and 1437680304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1437680341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 143050 + ... + 152769.

Almost surely, 2^1437680340 is an apocalyptic number.

1437680340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1437680340 is an abundant number, since it is smaller than the sum of its proper divisors (3084815820).

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

1437680340 is a wasteful number, since it uses less digits than its factorization.

1437680340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295843 (or 295829 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 1437680340 is about 37916.7553991636. The cubic root of 1437680340 is about 1128.6365522121.

The spelling of 1437680340 in words is "one billion, four hundred thirty-seven million, six hundred eighty thousand, three hundred forty".