1274036940 has 72 divisors (see below), whose sum is σ = 4215910608. Its totient is φ = 308856960.

The previous prime is 1274036921. The next prime is 1274036941. The reversal of 1274036940 is 496304721.

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 = 1274036895 and 1274036904.

It is not an unprimeable number, because it can be changed into a prime (1274036941) 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, 319747 + ... + 323706.

It is an arithmetic number, because the mean of its divisors is an integer number (58554314).

Almost surely, 2^1274036940 is an apocalyptic number.

1274036940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1274036940 is an abundant number, since it is smaller than the sum of its proper divisors (2941873668).

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

1274036940 is a wasteful number, since it uses less digits than its factorization.

1274036940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643479 (or 643474 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 1274036940 is about 35693.6540578294. The cubic root of 1274036940 is about 1084.0783554241.

The spelling of 1274036940 in words is "one billion, two hundred seventy-four million, thirty-six thousand, nine hundred forty".