1248407379 has 12 divisors (see below), whose sum is σ = 1803566232. Its totient is φ = 832128000.

The previous prime is 1248407371. The next prime is 1248407437. The reversal of 1248407379 is 9737048421.

It is not a de Polignac number, because 1248407379 - 2³ = 1248407371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1248407371) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81619 + ... + 95699.

It is an arithmetic number, because the mean of its divisors is an integer number (150297186).

Almost surely, 2^1248407379 is an apocalyptic number.

1248407379 is a deficient number, since it is larger than the sum of its proper divisors (555158853).

1248407379 is a wasteful number, since it uses less digits than its factorization.

1248407379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23938 (or 23935 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 1248407379 is about 35332.8088184339. The cubic root of 1248407379 is about 1076.7596575241.

The spelling of 1248407379 in words is "one billion, two hundred forty-eight million, four hundred seven thousand, three hundred seventy-nine".