1394404452742 has 32 divisors (see below), whose sum is σ = 2494845868032. Its totient is φ = 571502922144.

The previous prime is 1394404452731. The next prime is 1394404452757. The reversal of 1394404452742 is 2472544044931.

It is a super-2 number, since 2×1394404452742² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1153608 + ... + 2029684.

It is an arithmetic number, because the mean of its divisors is an integer number (77963933376).

Almost surely, 2^{1394404452742} is an apocalyptic number.

1394404452742 is a deficient number, since it is larger than the sum of its proper divisors (1100441415290).

1394404452742 is a wasteful number, since it uses less digits than its factorization.

1394404452742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881052.

The product of its (nonzero) digits is 3870720, while the sum is 49.

The spelling of 1394404452742 in words is "one trillion, three hundred ninety-four billion, four hundred four million, four hundred fifty-two thousand, seven hundred forty-two".