1245673370 has 16 divisors (see below), whose sum is σ = 2267407080. Its totient is φ = 492670464.

The previous prime is 1245673369. The next prime is 1245673391. The reversal of 1245673370 is 733765421.

It can be written as a sum of positive squares in 4 ways, for example, as 1171213729 + 74459641 = 34223^2 + 8629^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 698927 + ... + 700706.

Almost surely, 2^1245673370 is an apocalyptic number.

1245673370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1245673370 is a deficient number, since it is larger than the sum of its proper divisors (1021733710).

1245673370 is a wasteful number, since it uses less digits than its factorization.

1245673370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1399729.

The product of its (nonzero) digits is 105840, while the sum is 38.

The square root of 1245673370 is about 35294.0982318574. The cubic root of 1245673370 is about 1075.9730493796.

The spelling of 1245673370 in words is "one billion, two hundred forty-five million, six hundred seventy-three thousand, three hundred seventy".